I made an impulse buy on this frame and now I'm assembling pieces for it. I was looking into rigid fork options for it and a used Kona P2 fork or a new Soma fork are at the top of the list. The Soma is 440mm A2C, which is suspension corrected for an 80mm fork. The Kona forks I have found are 410mm A2C. I would guess this frame was built around 410-420 A2C, but I wanted to be sure.